drivers/net/wireless/intel/iwlwifi/iwl-drv.c

   1 /******************************************************************************
   2  *
   3  * This file is provided under a dual BSD/GPLv2 license.  When using or
   4  * redistributing this file, you may do so under either license.
   5  *
   6  * GPL LICENSE SUMMARY
   7  *
   8  * Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved.
   9  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  10  * Copyright(c) 2016        Intel Deutschland GmbH
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of version 2 of the GNU General Public License as
  14  * published by the Free Software Foundation.
  15  *
  16  * This program is distributed in the hope that it will be useful, but
  17  * WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19  * General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  24  * USA
  25  *
  26  * The full GNU General Public License is included in this distribution
  27  * in the file called COPYING.
  28  *
  29  * Contact Information:
  30  *  Intel Linux Wireless <linuxwifi@intel.com>
  31  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  32  *
  33  * BSD LICENSE
  34  *
  35  * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
  36  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  37  * Copyright(c) 2016        Intel Deutschland GmbH
  38  * All rights reserved.
  39  *
  40  * Redistribution and use in source and binary forms, with or without
  41  * modification, are permitted provided that the following conditions
  42  * are met:
  43  *
  44  *  * Redistributions of source code must retain the above copyright
  45  *    notice, this list of conditions and the following disclaimer.
  46  *  * Redistributions in binary form must reproduce the above copyright
  47  *    notice, this list of conditions and the following disclaimer in
  48  *    the documentation and/or other materials provided with the
  49  *    distribution.
  50  *  * Neither the name Intel Corporation nor the names of its
  51  *    contributors may be used to endorse or promote products derived
  52  *    from this software without specific prior written permission.
  53  *
  54  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  55  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  56  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  57  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  58  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  59  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  60  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  61  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  62  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  63  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  64  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  65  *
  66  *****************************************************************************/
  67 #include <linux/completion.h>
  68 #include <linux/dma-mapping.h>
  69 #include <linux/firmware.h>
  70 #include <linux/module.h>
  71 #include <linux/vmalloc.h>
  72
  73 #include "iwl-drv.h"
  74 #include "iwl-csr.h"
  75 #include "iwl-debug.h"
  76 #include "iwl-trans.h"
  77 #include "iwl-op-mode.h"
  78 #include "iwl-agn-hw.h"
  79 #include "iwl-fw.h"
  80 #include "iwl-config.h"
  81 #include "iwl-modparams.h"
  82
  83 /******************************************************************************
  84  *
  85  * module boiler plate
  86  *
  87  ******************************************************************************/
  88
  89 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi driver for Linux"
  90 MODULE_DESCRIPTION(DRV_DESCRIPTION);
  91 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
  92 MODULE_LICENSE("GPL");
  93
  94 #ifdef CONFIG_IWLWIFI_DEBUGFS
  95 static struct dentry *iwl_dbgfs_root;
  96 #endif
  97
  98 /**
  99  * struct iwl_drv - drv common data
 100  * @list: list of drv structures using this opmode
 101  * @fw: the iwl_fw structure
 102  * @op_mode: the running op_mode
 103  * @trans: transport layer
 104  * @dev: for debug prints only
 105  * @cfg: configuration struct
 106  * @fw_index: firmware revision to try loading
 107  * @firmware_name: composite filename of ucode file to load
 108  * @request_firmware_complete: the firmware has been obtained from user space
 109  */
 110 struct iwl_drv {
 111         struct list_head list;
 112         struct iwl_fw fw;
 113
 114         struct iwl_op_mode *op_mode;
 115         struct iwl_trans *trans;
 116         struct device *dev;
 117         const struct iwl_cfg *cfg;
 118
 119         int fw_index;                   /* firmware we're trying to load */
 120         char firmware_name[32];         /* name of firmware file to load */
 121
 122         struct completion request_firmware_complete;
 123
 124 #ifdef CONFIG_IWLWIFI_DEBUGFS
 125         struct dentry *dbgfs_drv;
 126         struct dentry *dbgfs_trans;
 127         struct dentry *dbgfs_op_mode;
 128 #endif
 129 };
 130
 131 enum {
 132         DVM_OP_MODE =   0,
 133         MVM_OP_MODE =   1,
 134 };
 135
 136 /* Protects the table contents, i.e. the ops pointer & drv list */
 137 static struct mutex iwlwifi_opmode_table_mtx;
 138 static struct iwlwifi_opmode_table {
 139         const char *name;                       /* name: iwldvm, iwlmvm, etc */
 140         const struct iwl_op_mode_ops *ops;      /* pointer to op_mode ops */
 141         struct list_head drv;           /* list of devices using this op_mode */
 142 } iwlwifi_opmode_table[] = {            /* ops set when driver is initialized */
 143         [DVM_OP_MODE] = { .name = "iwldvm", .ops = NULL },
 144         [MVM_OP_MODE] = { .name = "iwlmvm", .ops = NULL },
 145 };
 146
 147 #define IWL_DEFAULT_SCAN_CHANNELS 40
 148
 149 /*
 150  * struct fw_sec: Just for the image parsing process.
 151  * For the fw storage we are using struct fw_desc.
 152  */
 153 struct fw_sec {
 154         const void *data;               /* the sec data */
 155         size_t size;                    /* section size */
 156         u32 offset;                     /* offset of writing in the device */
 157 };
 158
 159 static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc)
 160 {
 161         vfree(desc->data);
 162         desc->data = NULL;
 163         desc->len = 0;
 164 }
 165
 166 static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img)
 167 {
 168         int i;
 169         for (i = 0; i < IWL_UCODE_SECTION_MAX; i++)
 170                 iwl_free_fw_desc(drv, &img->sec[i]);
 171 }
 172
 173 static void iwl_dealloc_ucode(struct iwl_drv *drv)
 174 {
 175         int i;
 176
 177         kfree(drv->fw.dbg_dest_tlv);
 178         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++)
 179                 kfree(drv->fw.dbg_conf_tlv[i]);
 180         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++)
 181                 kfree(drv->fw.dbg_trigger_tlv[i]);
 182         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_mem_tlv); i++)
 183                 kfree(drv->fw.dbg_mem_tlv[i]);
 184
 185         for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
 186                 iwl_free_fw_img(drv, drv->fw.img + i);
 187 }
 188
 189 static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc,
 190                              struct fw_sec *sec)
 191 {
 192         void *data;
 193
 194         desc->data = NULL;
 195
 196         if (!sec || !sec->size)
 197                 return -EINVAL;
 198
 199         data = vmalloc(sec->size);
 200         if (!data)
 201                 return -ENOMEM;
 202
 203         desc->len = sec->size;
 204         desc->offset = sec->offset;
 205         memcpy(data, sec->data, desc->len);
 206         desc->data = data;
 207
 208         return 0;
 209 }
 210
 211 static void iwl_req_fw_callback(const struct firmware *ucode_raw,
 212                                 void *context);
 213
 214 #define UCODE_EXPERIMENTAL_INDEX        100
 215 #define UCODE_EXPERIMENTAL_TAG          "exp"
 216
 217 static int iwl_request_firmware(struct iwl_drv *drv, bool first)
 218 {
 219         const char *name_pre = drv->cfg->fw_name_pre;
 220         char tag[8];
 221
 222         if (first) {
 223 #ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE
 224                 drv->fw_index = UCODE_EXPERIMENTAL_INDEX;
 225                 strcpy(tag, UCODE_EXPERIMENTAL_TAG);
 226         } else if (drv->fw_index == UCODE_EXPERIMENTAL_INDEX) {
 227 #endif
 228                 drv->fw_index = drv->cfg->ucode_api_max;
 229                 sprintf(tag, "%d", drv->fw_index);
 230         } else {
 231                 drv->fw_index--;
 232                 sprintf(tag, "%d", drv->fw_index);
 233         }
 234
 235         if (drv->fw_index < drv->cfg->ucode_api_min) {
 236                 IWL_ERR(drv, "no suitable firmware found!\n");
 237                 return -ENOENT;
 238         }
 239
 240         snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s%s.ucode",
 241                  name_pre, tag);
 242
 243         IWL_DEBUG_INFO(drv, "attempting to load firmware %s'%s'\n",
 244                        (drv->fw_index == UCODE_EXPERIMENTAL_INDEX)
 245                                 ? "EXPERIMENTAL " : "",
 246                        drv->firmware_name);
 247
 248         return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name,
 249                                        drv->trans->dev,
 250                                        GFP_KERNEL, drv, iwl_req_fw_callback);
 251 }
 252
 253 struct fw_img_parsing {
 254         struct fw_sec sec[IWL_UCODE_SECTION_MAX];
 255         int sec_counter;
 256 };
 257
 258 /*
 259  * struct fw_sec_parsing: to extract fw section and it's offset from tlv
 260  */
 261 struct fw_sec_parsing {
 262         __le32 offset;
 263         const u8 data[];
 264 } __packed;
 265
 266 /**
 267  * struct iwl_tlv_calib_data - parse the default calib data from TLV
 268  *
 269  * @ucode_type: the uCode to which the following default calib relates.
 270  * @calib: default calibrations.
 271  */
 272 struct iwl_tlv_calib_data {
 273         __le32 ucode_type;
 274         struct iwl_tlv_calib_ctrl calib;
 275 } __packed;
 276
 277 struct iwl_firmware_pieces {
 278         struct fw_img_parsing img[IWL_UCODE_TYPE_MAX];
 279
 280         u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
 281         u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
 282
 283         /* FW debug data parsed for driver usage */
 284         struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv;
 285         struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];
 286         size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX];
 287         struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX];
 288         size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX];
 289         struct iwl_fw_dbg_mem_seg_tlv *dbg_mem_tlv[FW_DBG_MEM_MAX];
 290 };
 291
 292 /*
 293  * These functions are just to extract uCode section data from the pieces
 294  * structure.
 295  */
 296 static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces,
 297                               enum iwl_ucode_type type,
 298                               int  sec)
 299 {
 300         return &pieces->img[type].sec[sec];
 301 }
 302
 303 static void set_sec_data(struct iwl_firmware_pieces *pieces,
 304                          enum iwl_ucode_type type,
 305                          int sec,
 306                          const void *data)
 307 {
 308         pieces->img[type].sec[sec].data = data;
 309 }
 310
 311 static void set_sec_size(struct iwl_firmware_pieces *pieces,
 312                          enum iwl_ucode_type type,
 313                          int sec,
 314                          size_t size)
 315 {
 316         pieces->img[type].sec[sec].size = size;
 317 }
 318
 319 static size_t get_sec_size(struct iwl_firmware_pieces *pieces,
 320                            enum iwl_ucode_type type,
 321                            int sec)
 322 {
 323         return pieces->img[type].sec[sec].size;
 324 }
 325
 326 static void set_sec_offset(struct iwl_firmware_pieces *pieces,
 327                            enum iwl_ucode_type type,
 328                            int sec,
 329                            u32 offset)
 330 {
 331         pieces->img[type].sec[sec].offset = offset;
 332 }
 333
 334 static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len)
 335 {
 336         int i, j;
 337         struct iwl_fw_cscheme_list *l = (struct iwl_fw_cscheme_list *)data;
 338         struct iwl_fw_cipher_scheme *fwcs;
 339         struct ieee80211_cipher_scheme *cs;
 340         u32 cipher;
 341
 342         if (len < sizeof(*l) ||
 343             len < sizeof(l->size) + l->size * sizeof(l->cs[0]))
 344                 return -EINVAL;
 345
 346         for (i = 0, j = 0; i < IWL_UCODE_MAX_CS && i < l->size; i++) {
 347                 fwcs = &l->cs[j];
 348                 cipher = le32_to_cpu(fwcs->cipher);
 349
 350                 /* we skip schemes with zero cipher suite selector */
 351                 if (!cipher)
 352                         continue;
 353
 354                 cs = &fw->cs[j++];
 355                 cs->cipher = cipher;
 356                 cs->iftype = BIT(NL80211_IFTYPE_STATION);
 357                 cs->hdr_len = fwcs->hdr_len;
 358                 cs->pn_len = fwcs->pn_len;
 359                 cs->pn_off = fwcs->pn_off;
 360                 cs->key_idx_off = fwcs->key_idx_off;
 361                 cs->key_idx_mask = fwcs->key_idx_mask;
 362                 cs->key_idx_shift = fwcs->key_idx_shift;
 363                 cs->mic_len = fwcs->mic_len;
 364         }
 365
 366         return 0;
 367 }
 368
 369 static void iwl_store_gscan_capa(struct iwl_fw *fw, const u8 *data,
 370                                  const u32 len)
 371 {
 372         struct iwl_fw_gscan_capabilities *fw_capa = (void *)data;
 373         struct iwl_gscan_capabilities *capa = &fw->gscan_capa;
 374
 375         capa->max_scan_cache_size = le32_to_cpu(fw_capa->max_scan_cache_size);
 376         capa->max_scan_buckets = le32_to_cpu(fw_capa->max_scan_buckets);
 377         capa->max_ap_cache_per_scan =
 378                 le32_to_cpu(fw_capa->max_ap_cache_per_scan);
 379         capa->max_rssi_sample_size = le32_to_cpu(fw_capa->max_rssi_sample_size);
 380         capa->max_scan_reporting_threshold =
 381                 le32_to_cpu(fw_capa->max_scan_reporting_threshold);
 382         capa->max_hotlist_aps = le32_to_cpu(fw_capa->max_hotlist_aps);
 383         capa->max_significant_change_aps =
 384                 le32_to_cpu(fw_capa->max_significant_change_aps);
 385         capa->max_bssid_history_entries =
 386                 le32_to_cpu(fw_capa->max_bssid_history_entries);
 387         capa->max_hotlist_ssids = le32_to_cpu(fw_capa->max_hotlist_ssids);
 388         capa->max_number_epno_networks =
 389                 le32_to_cpu(fw_capa->max_number_epno_networks);
 390         capa->max_number_epno_networks_by_ssid =
 391                 le32_to_cpu(fw_capa->max_number_epno_networks_by_ssid);
 392         capa->max_number_of_white_listed_ssid =
 393                 le32_to_cpu(fw_capa->max_number_of_white_listed_ssid);
 394         capa->max_number_of_black_listed_ssid =
 395                 le32_to_cpu(fw_capa->max_number_of_black_listed_ssid);
 396 }
 397
 398 /*
 399  * Gets uCode section from tlv.
 400  */
 401 static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces,
 402                                const void *data, enum iwl_ucode_type type,
 403                                int size)
 404 {
 405         struct fw_img_parsing *img;
 406         struct fw_sec *sec;
 407         struct fw_sec_parsing *sec_parse;
 408
 409         if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX))
 410                 return -1;
 411
 412         sec_parse = (struct fw_sec_parsing *)data;
 413
 414         img = &pieces->img[type];
 415         sec = &img->sec[img->sec_counter];
 416
 417         sec->offset = le32_to_cpu(sec_parse->offset);
 418         sec->data = sec_parse->data;
 419         sec->size = size - sizeof(sec_parse->offset);
 420
 421         ++img->sec_counter;
 422
 423         return 0;
 424 }
 425
 426 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data)
 427 {
 428         struct iwl_tlv_calib_data *def_calib =
 429                                         (struct iwl_tlv_calib_data *)data;
 430         u32 ucode_type = le32_to_cpu(def_calib->ucode_type);
 431         if (ucode_type >= IWL_UCODE_TYPE_MAX) {
 432                 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n",
 433                         ucode_type);
 434                 return -EINVAL;
 435         }
 436         drv->fw.default_calib[ucode_type].flow_trigger =
 437                 def_calib->calib.flow_trigger;
 438         drv->fw.default_calib[ucode_type].event_trigger =
 439                 def_calib->calib.event_trigger;
 440
 441         return 0;
 442 }
 443
 444 static int iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data,
 445                                    struct iwl_ucode_capabilities *capa)
 446 {
 447         const struct iwl_ucode_api *ucode_api = (void *)data;
 448         u32 api_index = le32_to_cpu(ucode_api->api_index);
 449         u32 api_flags = le32_to_cpu(ucode_api->api_flags);
 450         int i;
 451
 452         if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) {
 453                 IWL_ERR(drv,
 454                         "api flags index %d larger than supported by driver\n",
 455                         api_index);
 456                 /* don't return an error so we can load FW that has more bits */
 457                 return 0;
 458         }
 459
 460         for (i = 0; i < 32; i++) {
 461                 if (api_flags & BIT(i))
 462                         __set_bit(i + 32 * api_index, capa->_api);
 463         }
 464
 465         return 0;
 466 }
 467
 468 static int iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data,
 469                                       struct iwl_ucode_capabilities *capa)
 470 {
 471         const struct iwl_ucode_capa *ucode_capa = (void *)data;
 472         u32 api_index = le32_to_cpu(ucode_capa->api_index);
 473         u32 api_flags = le32_to_cpu(ucode_capa->api_capa);
 474         int i;
 475
 476         if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) {
 477                 IWL_ERR(drv,
 478                         "capa flags index %d larger than supported by driver\n",
 479                         api_index);
 480                 /* don't return an error so we can load FW that has more bits */
 481                 return 0;
 482         }
 483
 484         for (i = 0; i < 32; i++) {
 485                 if (api_flags & BIT(i))
 486                         __set_bit(i + 32 * api_index, capa->_capa);
 487         }
 488
 489         return 0;
 490 }
 491
 492 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv,
 493                                     const struct firmware *ucode_raw,
 494                                     struct iwl_firmware_pieces *pieces)
 495 {
 496         struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
 497         u32 api_ver, hdr_size, build;
 498         char buildstr[25];
 499         const u8 *src;
 500
 501         drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
 502         api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
 503
 504         switch (api_ver) {
 505         default:
 506                 hdr_size = 28;
 507                 if (ucode_raw->size < hdr_size) {
 508                         IWL_ERR(drv, "File size too small!\n");
 509                         return -EINVAL;
 510                 }
 511                 build = le32_to_cpu(ucode->u.v2.build);
 512                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 513                              le32_to_cpu(ucode->u.v2.inst_size));
 514                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 515                              le32_to_cpu(ucode->u.v2.data_size));
 516                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 517                              le32_to_cpu(ucode->u.v2.init_size));
 518                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 519                              le32_to_cpu(ucode->u.v2.init_data_size));
 520                 src = ucode->u.v2.data;
 521                 break;
 522         case 0:
 523         case 1:
 524         case 2:
 525                 hdr_size = 24;
 526                 if (ucode_raw->size < hdr_size) {
 527                         IWL_ERR(drv, "File size too small!\n");
 528                         return -EINVAL;
 529                 }
 530                 build = 0;
 531                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 532                              le32_to_cpu(ucode->u.v1.inst_size));
 533                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 534                              le32_to_cpu(ucode->u.v1.data_size));
 535                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 536                              le32_to_cpu(ucode->u.v1.init_size));
 537                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 538                              le32_to_cpu(ucode->u.v1.init_data_size));
 539                 src = ucode->u.v1.data;
 540                 break;
 541         }
 542
 543         if (build)
 544                 sprintf(buildstr, " build %u%s", build,
 545                        (drv->fw_index == UCODE_EXPERIMENTAL_INDEX)
 546                                 ? " (EXP)" : "");
 547         else
 548                 buildstr[0] = '\0';
 549
 550         snprintf(drv->fw.fw_version,
 551                  sizeof(drv->fw.fw_version),
 552                  "%u.%u.%u.%u%s",
 553                  IWL_UCODE_MAJOR(drv->fw.ucode_ver),
 554                  IWL_UCODE_MINOR(drv->fw.ucode_ver),
 555                  IWL_UCODE_API(drv->fw.ucode_ver),
 556                  IWL_UCODE_SERIAL(drv->fw.ucode_ver),
 557                  buildstr);
 558
 559         /* Verify size of file vs. image size info in file's header */
 560
 561         if (ucode_raw->size != hdr_size +
 562             get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) +
 563             get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) +
 564             get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) +
 565             get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) {
 566
 567                 IWL_ERR(drv,
 568                         "uCode file size %d does not match expected size\n",
 569                         (int)ucode_raw->size);
 570                 return -EINVAL;
 571         }
 572
 573
 574         set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src);
 575         src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST);
 576         set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 577                        IWLAGN_RTC_INST_LOWER_BOUND);
 578         set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src);
 579         src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA);
 580         set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 581                        IWLAGN_RTC_DATA_LOWER_BOUND);
 582         set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src);
 583         src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST);
 584         set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 585                        IWLAGN_RTC_INST_LOWER_BOUND);
 586         set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src);
 587         src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA);
 588         set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 589                        IWLAGN_RTC_DATA_LOWER_BOUND);
 590         return 0;
 591 }
 592
 593 static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
 594                                 const struct firmware *ucode_raw,
 595                                 struct iwl_firmware_pieces *pieces,
 596                                 struct iwl_ucode_capabilities *capa,
 597                                 bool *usniffer_images)
 598 {
 599         struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
 600         struct iwl_ucode_tlv *tlv;
 601         size_t len = ucode_raw->size;
 602         const u8 *data;
 603         u32 tlv_len;
 604         u32 usniffer_img;
 605         enum iwl_ucode_tlv_type tlv_type;
 606         const u8 *tlv_data;
 607         char buildstr[25];
 608         u32 build, paging_mem_size;
 609         int num_of_cpus;
 610         bool usniffer_req = false;
 611         bool gscan_capa = false;
 612
 613         if (len < sizeof(*ucode)) {
 614                 IWL_ERR(drv, "uCode has invalid length: %zd\n", len);
 615                 return -EINVAL;
 616         }
 617
 618         if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
 619                 IWL_ERR(drv, "invalid uCode magic: 0X%x\n",
 620                         le32_to_cpu(ucode->magic));
 621                 return -EINVAL;
 622         }
 623
 624         drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
 625         memcpy(drv->fw.human_readable, ucode->human_readable,
 626                sizeof(drv->fw.human_readable));
 627         build = le32_to_cpu(ucode->build);
 628
 629         if (build)
 630                 sprintf(buildstr, " build %u%s", build,
 631                        (drv->fw_index == UCODE_EXPERIMENTAL_INDEX)
 632                                 ? " (EXP)" : "");
 633         else
 634                 buildstr[0] = '\0';
 635
 636         snprintf(drv->fw.fw_version,
 637                  sizeof(drv->fw.fw_version),
 638                  "%u.%u.%u.%u%s",
 639                  IWL_UCODE_MAJOR(drv->fw.ucode_ver),
 640                  IWL_UCODE_MINOR(drv->fw.ucode_ver),
 641                  IWL_UCODE_API(drv->fw.ucode_ver),
 642                  IWL_UCODE_SERIAL(drv->fw.ucode_ver),
 643                  buildstr);
 644
 645         data = ucode->data;
 646
 647         len -= sizeof(*ucode);
 648
 649         while (len >= sizeof(*tlv)) {
 650                 len -= sizeof(*tlv);
 651                 tlv = (void *)data;
 652
 653                 tlv_len = le32_to_cpu(tlv->length);
 654                 tlv_type = le32_to_cpu(tlv->type);
 655                 tlv_data = tlv->data;
 656
 657                 if (len < tlv_len) {
 658                         IWL_ERR(drv, "invalid TLV len: %zd/%u\n",
 659                                 len, tlv_len);
 660                         return -EINVAL;
 661                 }
 662                 len -= ALIGN(tlv_len, 4);
 663                 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
 664
 665                 switch (tlv_type) {
 666                 case IWL_UCODE_TLV_INST:
 667                         set_sec_data(pieces, IWL_UCODE_REGULAR,
 668                                      IWL_UCODE_SECTION_INST, tlv_data);
 669                         set_sec_size(pieces, IWL_UCODE_REGULAR,
 670                                      IWL_UCODE_SECTION_INST, tlv_len);
 671                         set_sec_offset(pieces, IWL_UCODE_REGULAR,
 672                                        IWL_UCODE_SECTION_INST,
 673                                        IWLAGN_RTC_INST_LOWER_BOUND);
 674                         break;
 675                 case IWL_UCODE_TLV_DATA:
 676                         set_sec_data(pieces, IWL_UCODE_REGULAR,
 677                                      IWL_UCODE_SECTION_DATA, tlv_data);
 678                         set_sec_size(pieces, IWL_UCODE_REGULAR,
 679                                      IWL_UCODE_SECTION_DATA, tlv_len);
 680                         set_sec_offset(pieces, IWL_UCODE_REGULAR,
 681                                        IWL_UCODE_SECTION_DATA,
 682                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 683                         break;
 684                 case IWL_UCODE_TLV_INIT:
 685                         set_sec_data(pieces, IWL_UCODE_INIT,
 686                                      IWL_UCODE_SECTION_INST, tlv_data);
 687                         set_sec_size(pieces, IWL_UCODE_INIT,
 688                                      IWL_UCODE_SECTION_INST, tlv_len);
 689                         set_sec_offset(pieces, IWL_UCODE_INIT,
 690                                        IWL_UCODE_SECTION_INST,
 691                                        IWLAGN_RTC_INST_LOWER_BOUND);
 692                         break;
 693                 case IWL_UCODE_TLV_INIT_DATA:
 694                         set_sec_data(pieces, IWL_UCODE_INIT,
 695                                      IWL_UCODE_SECTION_DATA, tlv_data);
 696                         set_sec_size(pieces, IWL_UCODE_INIT,
 697                                      IWL_UCODE_SECTION_DATA, tlv_len);
 698                         set_sec_offset(pieces, IWL_UCODE_INIT,
 699                                        IWL_UCODE_SECTION_DATA,
 700                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 701                         break;
 702                 case IWL_UCODE_TLV_BOOT:
 703                         IWL_ERR(drv, "Found unexpected BOOT ucode\n");
 704                         break;
 705                 case IWL_UCODE_TLV_PROBE_MAX_LEN:
 706                         if (tlv_len != sizeof(u32))
 707                                 goto invalid_tlv_len;
 708                         capa->max_probe_length =
 709                                         le32_to_cpup((__le32 *)tlv_data);
 710                         break;
 711                 case IWL_UCODE_TLV_PAN:
 712                         if (tlv_len)
 713                                 goto invalid_tlv_len;
 714                         capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
 715                         break;
 716                 case IWL_UCODE_TLV_FLAGS:
 717                         /* must be at least one u32 */
 718                         if (tlv_len < sizeof(u32))
 719                                 goto invalid_tlv_len;
 720                         /* and a proper number of u32s */
 721                         if (tlv_len % sizeof(u32))
 722                                 goto invalid_tlv_len;
 723                         /*
 724                          * This driver only reads the first u32 as
 725                          * right now no more features are defined,
 726                          * if that changes then either the driver
 727                          * will not work with the new firmware, or
 728                          * it'll not take advantage of new features.
 729                          */
 730                         capa->flags = le32_to_cpup((__le32 *)tlv_data);
 731                         break;
 732                 case IWL_UCODE_TLV_API_CHANGES_SET:
 733                         if (tlv_len != sizeof(struct iwl_ucode_api))
 734                                 goto invalid_tlv_len;
 735                         if (iwl_set_ucode_api_flags(drv, tlv_data, capa))
 736                                 goto tlv_error;
 737                         break;
 738                 case IWL_UCODE_TLV_ENABLED_CAPABILITIES:
 739                         if (tlv_len != sizeof(struct iwl_ucode_capa))
 740                                 goto invalid_tlv_len;
 741                         if (iwl_set_ucode_capabilities(drv, tlv_data, capa))
 742                                 goto tlv_error;
 743                         break;
 744                 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
 745                         if (tlv_len != sizeof(u32))
 746                                 goto invalid_tlv_len;
 747                         pieces->init_evtlog_ptr =
 748                                         le32_to_cpup((__le32 *)tlv_data);
 749                         break;
 750                 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
 751                         if (tlv_len != sizeof(u32))
 752                                 goto invalid_tlv_len;
 753                         pieces->init_evtlog_size =
 754                                         le32_to_cpup((__le32 *)tlv_data);
 755                         break;
 756                 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
 757                         if (tlv_len != sizeof(u32))
 758                                 goto invalid_tlv_len;
 759                         pieces->init_errlog_ptr =
 760                                         le32_to_cpup((__le32 *)tlv_data);
 761                         break;
 762                 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
 763                         if (tlv_len != sizeof(u32))
 764                                 goto invalid_tlv_len;
 765                         pieces->inst_evtlog_ptr =
 766                                         le32_to_cpup((__le32 *)tlv_data);
 767                         break;
 768                 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
 769                         if (tlv_len != sizeof(u32))
 770                                 goto invalid_tlv_len;
 771                         pieces->inst_evtlog_size =
 772                                         le32_to_cpup((__le32 *)tlv_data);
 773                         break;
 774                 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
 775                         if (tlv_len != sizeof(u32))
 776                                 goto invalid_tlv_len;
 777                         pieces->inst_errlog_ptr =
 778                                         le32_to_cpup((__le32 *)tlv_data);
 779                         break;
 780                 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
 781                         if (tlv_len)
 782                                 goto invalid_tlv_len;
 783                         drv->fw.enhance_sensitivity_table = true;
 784                         break;
 785                 case IWL_UCODE_TLV_WOWLAN_INST:
 786                         set_sec_data(pieces, IWL_UCODE_WOWLAN,
 787                                      IWL_UCODE_SECTION_INST, tlv_data);
 788                         set_sec_size(pieces, IWL_UCODE_WOWLAN,
 789                                      IWL_UCODE_SECTION_INST, tlv_len);
 790                         set_sec_offset(pieces, IWL_UCODE_WOWLAN,
 791                                        IWL_UCODE_SECTION_INST,
 792                                        IWLAGN_RTC_INST_LOWER_BOUND);
 793                         break;
 794                 case IWL_UCODE_TLV_WOWLAN_DATA:
 795                         set_sec_data(pieces, IWL_UCODE_WOWLAN,
 796                                      IWL_UCODE_SECTION_DATA, tlv_data);
 797                         set_sec_size(pieces, IWL_UCODE_WOWLAN,
 798                                      IWL_UCODE_SECTION_DATA, tlv_len);
 799                         set_sec_offset(pieces, IWL_UCODE_WOWLAN,
 800                                        IWL_UCODE_SECTION_DATA,
 801                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 802                         break;
 803                 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
 804                         if (tlv_len != sizeof(u32))
 805                                 goto invalid_tlv_len;
 806                         capa->standard_phy_calibration_size =
 807                                         le32_to_cpup((__le32 *)tlv_data);
 808                         break;
 809                  case IWL_UCODE_TLV_SEC_RT:
 810                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
 811                                             tlv_len);
 812                         drv->fw.mvm_fw = true;
 813                         break;
 814                 case IWL_UCODE_TLV_SEC_INIT:
 815                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
 816                                             tlv_len);
 817                         drv->fw.mvm_fw = true;
 818                         break;
 819                 case IWL_UCODE_TLV_SEC_WOWLAN:
 820                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
 821                                             tlv_len);
 822                         drv->fw.mvm_fw = true;
 823                         break;
 824                 case IWL_UCODE_TLV_DEF_CALIB:
 825                         if (tlv_len != sizeof(struct iwl_tlv_calib_data))
 826                                 goto invalid_tlv_len;
 827                         if (iwl_set_default_calib(drv, tlv_data))
 828                                 goto tlv_error;
 829                         break;
 830                 case IWL_UCODE_TLV_PHY_SKU:
 831                         if (tlv_len != sizeof(u32))
 832                                 goto invalid_tlv_len;
 833                         drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data);
 834                         drv->fw.valid_tx_ant = (drv->fw.phy_config &
 835                                                 FW_PHY_CFG_TX_CHAIN) >>
 836                                                 FW_PHY_CFG_TX_CHAIN_POS;
 837                         drv->fw.valid_rx_ant = (drv->fw.phy_config &
 838                                                 FW_PHY_CFG_RX_CHAIN) >>
 839                                                 FW_PHY_CFG_RX_CHAIN_POS;
 840                         break;
 841                  case IWL_UCODE_TLV_SECURE_SEC_RT:
 842                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
 843                                             tlv_len);
 844                         drv->fw.mvm_fw = true;
 845                         break;
 846                 case IWL_UCODE_TLV_SECURE_SEC_INIT:
 847                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
 848                                             tlv_len);
 849                         drv->fw.mvm_fw = true;
 850                         break;
 851                 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN:
 852                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
 853                                             tlv_len);
 854                         drv->fw.mvm_fw = true;
 855                         break;
 856                 case IWL_UCODE_TLV_NUM_OF_CPU:
 857                         if (tlv_len != sizeof(u32))
 858                                 goto invalid_tlv_len;
 859                         num_of_cpus =
 860                                 le32_to_cpup((__le32 *)tlv_data);
 861
 862                         if (num_of_cpus == 2) {
 863                                 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus =
 864                                         true;
 865                                 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus =
 866                                         true;
 867                                 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus =
 868                                         true;
 869                         } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) {
 870                                 IWL_ERR(drv, "Driver support upto 2 CPUs\n");
 871                                 return -EINVAL;
 872                         }
 873                         break;
 874                 case IWL_UCODE_TLV_CSCHEME:
 875                         if (iwl_store_cscheme(&drv->fw, tlv_data, tlv_len))
 876                                 goto invalid_tlv_len;
 877                         break;
 878                 case IWL_UCODE_TLV_N_SCAN_CHANNELS:
 879                         if (tlv_len != sizeof(u32))
 880                                 goto invalid_tlv_len;
 881                         capa->n_scan_channels =
 882                                 le32_to_cpup((__le32 *)tlv_data);
 883                         break;
 884                 case IWL_UCODE_TLV_FW_VERSION: {
 885                         __le32 *ptr = (void *)tlv_data;
 886                         u32 major, minor;
 887                         u8 local_comp;
 888
 889                         if (tlv_len != sizeof(u32) * 3)
 890                                 goto invalid_tlv_len;
 891
 892                         major = le32_to_cpup(ptr++);
 893                         minor = le32_to_cpup(ptr++);
 894                         local_comp = le32_to_cpup(ptr);
 895
 896                         snprintf(drv->fw.fw_version,
 897                                  sizeof(drv->fw.fw_version), "%u.%u.%u",
 898                                  major, minor, local_comp);
 899                         break;
 900                         }
 901                 case IWL_UCODE_TLV_FW_DBG_DEST: {
 902                         struct iwl_fw_dbg_dest_tlv *dest = (void *)tlv_data;
 903
 904                         if (pieces->dbg_dest_tlv) {
 905                                 IWL_ERR(drv,
 906                                         "dbg destination ignored, already exists\n");
 907                                 break;
 908                         }
 909
 910                         pieces->dbg_dest_tlv = dest;
 911                         IWL_INFO(drv, "Found debug destination: %s\n",
 912                                  get_fw_dbg_mode_string(dest->monitor_mode));
 913
 914                         drv->fw.dbg_dest_reg_num =
 915                                 tlv_len - offsetof(struct iwl_fw_dbg_dest_tlv,
 916                                                    reg_ops);
 917                         drv->fw.dbg_dest_reg_num /=
 918                                 sizeof(drv->fw.dbg_dest_tlv->reg_ops[0]);
 919
 920                         break;
 921                         }
 922                 case IWL_UCODE_TLV_FW_DBG_CONF: {
 923                         struct iwl_fw_dbg_conf_tlv *conf = (void *)tlv_data;
 924
 925                         if (!pieces->dbg_dest_tlv) {
 926                                 IWL_ERR(drv,
 927                                         "Ignore dbg config %d - no destination configured\n",
 928                                         conf->id);
 929                                 break;
 930                         }
 931
 932                         if (conf->id >= ARRAY_SIZE(drv->fw.dbg_conf_tlv)) {
 933                                 IWL_ERR(drv,
 934                                         "Skip unknown configuration: %d\n",
 935                                         conf->id);
 936                                 break;
 937                         }
 938
 939                         if (pieces->dbg_conf_tlv[conf->id]) {
 940                                 IWL_ERR(drv,
 941                                         "Ignore duplicate dbg config %d\n",
 942                                         conf->id);
 943                                 break;
 944                         }
 945
 946                         if (conf->usniffer)
 947                                 usniffer_req = true;
 948
 949                         IWL_INFO(drv, "Found debug configuration: %d\n",
 950                                  conf->id);
 951
 952                         pieces->dbg_conf_tlv[conf->id] = conf;
 953                         pieces->dbg_conf_tlv_len[conf->id] = tlv_len;
 954                         break;
 955                         }
 956                 case IWL_UCODE_TLV_FW_DBG_TRIGGER: {
 957                         struct iwl_fw_dbg_trigger_tlv *trigger =
 958                                 (void *)tlv_data;
 959                         u32 trigger_id = le32_to_cpu(trigger->id);
 960
 961                         if (trigger_id >= ARRAY_SIZE(drv->fw.dbg_trigger_tlv)) {
 962                                 IWL_ERR(drv,
 963                                         "Skip unknown trigger: %u\n",
 964                                         trigger->id);
 965                                 break;
 966                         }
 967
 968                         if (pieces->dbg_trigger_tlv[trigger_id]) {
 969                                 IWL_ERR(drv,
 970                                         "Ignore duplicate dbg trigger %u\n",
 971                                         trigger->id);
 972                                 break;
 973                         }
 974
 975                         IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id);
 976
 977                         pieces->dbg_trigger_tlv[trigger_id] = trigger;
 978                         pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len;
 979                         break;
 980                         }
 981                 case IWL_UCODE_TLV_SEC_RT_USNIFFER:
 982                         *usniffer_images = true;
 983                         iwl_store_ucode_sec(pieces, tlv_data,
 984                                             IWL_UCODE_REGULAR_USNIFFER,
 985                                             tlv_len);
 986                         break;
 987                 case IWL_UCODE_TLV_PAGING:
 988                         if (tlv_len != sizeof(u32))
 989                                 goto invalid_tlv_len;
 990                         paging_mem_size = le32_to_cpup((__le32 *)tlv_data);
 991
 992                         IWL_DEBUG_FW(drv,
 993                                      "Paging: paging enabled (size = %u bytes)\n",
 994                                      paging_mem_size);
 995
 996                         if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) {
 997                                 IWL_ERR(drv,
 998                                         "Paging: driver supports up to %lu bytes for paging image\n",
 999                                         MAX_PAGING_IMAGE_SIZE);
1000                                 return -EINVAL;
1001                         }
1002
1003                         if (paging_mem_size & (FW_PAGING_SIZE - 1)) {
1004                                 IWL_ERR(drv,
1005                                         "Paging: image isn't multiple %lu\n",
1006                                         FW_PAGING_SIZE);
1007                                 return -EINVAL;
1008                         }
1009
1010                         drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size =
1011                                 paging_mem_size;
1012                         usniffer_img = IWL_UCODE_REGULAR_USNIFFER;
1013                         drv->fw.img[usniffer_img].paging_mem_size =
1014                                 paging_mem_size;
1015                         break;
1016                 case IWL_UCODE_TLV_SDIO_ADMA_ADDR:
1017                         if (tlv_len != sizeof(u32))
1018                                 goto invalid_tlv_len;
1019                         drv->fw.sdio_adma_addr =
1020                                 le32_to_cpup((__le32 *)tlv_data);
1021                         break;
1022                 case IWL_UCODE_TLV_FW_GSCAN_CAPA:
1023                         /*
1024                          * Don't return an error in case of a shorter tlv_len
1025                          * to enable loading of FW that has an old format
1026                          * of GSCAN capabilities TLV.
1027                          */
1028                         if (tlv_len < sizeof(struct iwl_fw_gscan_capabilities))
1029                                 break;
1030
1031                         iwl_store_gscan_capa(&drv->fw, tlv_data, tlv_len);
1032                         gscan_capa = true;
1033                         break;
1034                 case IWL_UCODE_TLV_FW_MEM_SEG: {
1035                         struct iwl_fw_dbg_mem_seg_tlv *dbg_mem =
1036                                 (void *)tlv_data;
1037                         u32 type;
1038
1039                         if (tlv_len != (sizeof(*dbg_mem)))
1040                                 goto invalid_tlv_len;
1041
1042                         type = le32_to_cpu(dbg_mem->data_type);
1043                         drv->fw.dbg_dynamic_mem = true;
1044
1045                         if (type >= ARRAY_SIZE(drv->fw.dbg_mem_tlv)) {
1046                                 IWL_ERR(drv,
1047                                         "Skip unknown dbg mem segment: %u\n",
1048                                         dbg_mem->data_type);
1049                                 break;
1050                         }
1051
1052                         if (pieces->dbg_mem_tlv[type]) {
1053                                 IWL_ERR(drv,
1054                                         "Ignore duplicate mem segment: %u\n",
1055                                         dbg_mem->data_type);
1056                                 break;
1057                         }
1058
1059                         IWL_DEBUG_INFO(drv, "Found debug memory segment: %u\n",
1060                                        dbg_mem->data_type);
1061
1062                         pieces->dbg_mem_tlv[type] = dbg_mem;
1063                         break;
1064                         }
1065                 default:
1066                         IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
1067                         break;
1068                 }
1069         }
1070
1071         if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) &&
1072             usniffer_req && !*usniffer_images) {
1073                 IWL_ERR(drv,
1074                         "user selected to work with usniffer but usniffer image isn't available in ucode package\n");
1075                 return -EINVAL;
1076         }
1077
1078         if (len) {
1079                 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len);
1080                 iwl_print_hex_dump(drv, IWL_DL_FW, (u8 *)data, len);
1081                 return -EINVAL;
1082         }
1083
1084         /*
1085          * If ucode advertises that it supports GSCAN but GSCAN
1086          * capabilities TLV is not present, or if it has an old format,
1087          * warn and continue without GSCAN.
1088          */
1089         if (fw_has_capa(capa, IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT) &&
1090             !gscan_capa) {
1091                 IWL_DEBUG_INFO(drv,
1092                                "GSCAN is supported but capabilities TLV is unavailable\n");
1093                 __clear_bit((__force long)IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT,
1094                             capa->_capa);
1095         }
1096
1097         return 0;
1098
1099  invalid_tlv_len:
1100         IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
1101  tlv_error:
1102         iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len);
1103
1104         return -EINVAL;
1105 }
1106
1107 static int iwl_alloc_ucode(struct iwl_drv *drv,
1108                            struct iwl_firmware_pieces *pieces,
1109                            enum iwl_ucode_type type)
1110 {
1111         int i;
1112         for (i = 0;
1113              i < IWL_UCODE_SECTION_MAX && get_sec_size(pieces, type, i);
1114              i++)
1115                 if (iwl_alloc_fw_desc(drv, &(drv->fw.img[type].sec[i]),
1116                                       get_sec(pieces, type, i)))
1117                         return -ENOMEM;
1118         return 0;
1119 }
1120
1121 static int validate_sec_sizes(struct iwl_drv *drv,
1122                               struct iwl_firmware_pieces *pieces,
1123                               const struct iwl_cfg *cfg)
1124 {
1125         IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %Zd\n",
1126                 get_sec_size(pieces, IWL_UCODE_REGULAR,
1127                              IWL_UCODE_SECTION_INST));
1128         IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %Zd\n",
1129                 get_sec_size(pieces, IWL_UCODE_REGULAR,
1130                              IWL_UCODE_SECTION_DATA));
1131         IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %Zd\n",
1132                 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST));
1133         IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %Zd\n",
1134                 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA));
1135
1136         /* Verify that uCode images will fit in card's SRAM. */
1137         if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) >
1138             cfg->max_inst_size) {
1139                 IWL_ERR(drv, "uCode instr len %Zd too large to fit in\n",
1140                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1141                                      IWL_UCODE_SECTION_INST));
1142                 return -1;
1143         }
1144
1145         if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) >
1146             cfg->max_data_size) {
1147                 IWL_ERR(drv, "uCode data len %Zd too large to fit in\n",
1148                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1149                                      IWL_UCODE_SECTION_DATA));
1150                 return -1;
1151         }
1152
1153         if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
1154              cfg->max_inst_size) {
1155                 IWL_ERR(drv, "uCode init instr len %Zd too large to fit in\n",
1156                         get_sec_size(pieces, IWL_UCODE_INIT,
1157                                      IWL_UCODE_SECTION_INST));
1158                 return -1;
1159         }
1160
1161         if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
1162             cfg->max_data_size) {
1163                 IWL_ERR(drv, "uCode init data len %Zd too large to fit in\n",
1164                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1165                                      IWL_UCODE_SECTION_DATA));
1166                 return -1;
1167         }
1168         return 0;
1169 }
1170
1171 static struct iwl_op_mode *
1172 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op)
1173 {
1174         const struct iwl_op_mode_ops *ops = op->ops;
1175         struct dentry *dbgfs_dir = NULL;
1176         struct iwl_op_mode *op_mode = NULL;
1177
1178 #ifdef CONFIG_IWLWIFI_DEBUGFS
1179         drv->dbgfs_op_mode = debugfs_create_dir(op->name,
1180                                                 drv->dbgfs_drv);
1181         if (!drv->dbgfs_op_mode) {
1182                 IWL_ERR(drv,
1183                         "failed to create opmode debugfs directory\n");
1184                 return op_mode;
1185         }
1186         dbgfs_dir = drv->dbgfs_op_mode;
1187 #endif
1188
1189         op_mode = ops->start(drv->trans, drv->cfg, &drv->fw, dbgfs_dir);
1190
1191 #ifdef CONFIG_IWLWIFI_DEBUGFS
1192         if (!op_mode) {
1193                 debugfs_remove_recursive(drv->dbgfs_op_mode);
1194                 drv->dbgfs_op_mode = NULL;
1195         }
1196 #endif
1197
1198         return op_mode;
1199 }
1200
1201 static void _iwl_op_mode_stop(struct iwl_drv *drv)
1202 {
1203         /* op_mode can be NULL if its start failed */
1204         if (drv->op_mode) {
1205                 iwl_op_mode_stop(drv->op_mode);
1206                 drv->op_mode = NULL;
1207
1208 #ifdef CONFIG_IWLWIFI_DEBUGFS
1209                 debugfs_remove_recursive(drv->dbgfs_op_mode);
1210                 drv->dbgfs_op_mode = NULL;
1211 #endif
1212         }
1213 }
1214
1215 /**
1216  * iwl_req_fw_callback - callback when firmware was loaded
1217  *
1218  * If loaded successfully, copies the firmware into buffers
1219  * for the card to fetch (via DMA).
1220  */
1221 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
1222 {
1223         struct iwl_drv *drv = context;
1224         struct iwl_fw *fw = &drv->fw;
1225         struct iwl_ucode_header *ucode;
1226         struct iwlwifi_opmode_table *op;
1227         int err;
1228         struct iwl_firmware_pieces *pieces;
1229         const unsigned int api_max = drv->cfg->ucode_api_max;
1230         const unsigned int api_min = drv->cfg->ucode_api_min;
1231         size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX];
1232         u32 api_ver;
1233         int i;
1234         bool load_module = false;
1235         bool usniffer_images = false;
1236
1237         fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
1238         fw->ucode_capa.standard_phy_calibration_size =
1239                         IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1240         fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS;
1241
1242         pieces = kzalloc(sizeof(*pieces), GFP_KERNEL);
1243         if (!pieces)
1244                 return;
1245
1246         if (!ucode_raw)
1247                 goto try_again;
1248
1249         IWL_DEBUG_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n",
1250                        drv->firmware_name, ucode_raw->size);
1251
1252         /* Make sure that we got at least the API version number */
1253         if (ucode_raw->size < 4) {
1254                 IWL_ERR(drv, "File size way too small!\n");
1255                 goto try_again;
1256         }
1257
1258         /* Data from ucode file:  header followed by uCode images */
1259         ucode = (struct iwl_ucode_header *)ucode_raw->data;
1260
1261         if (ucode->ver)
1262                 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces);
1263         else
1264                 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces,
1265                                              &fw->ucode_capa, &usniffer_images);
1266
1267         if (err)
1268                 goto try_again;
1269
1270         api_ver = drv->fw.ucode_ver;
1271
1272         /*
1273          * api_ver should match the api version forming part of the
1274          * firmware filename ... but we don't check for that and only rely
1275          * on the API version read from firmware header from here on forward
1276          */
1277         /* no api version check required for experimental uCode */
1278         if (drv->fw_index != UCODE_EXPERIMENTAL_INDEX) {
1279                 if (api_ver < api_min || api_ver > api_max) {
1280                         IWL_ERR(drv,
1281                                 "Driver unable to support your firmware API. "
1282                                 "Driver supports v%u, firmware is v%u.\n",
1283                                 api_max, api_ver);
1284                         goto try_again;
1285                 }
1286         }
1287
1288         /*
1289          * In mvm uCode there is no difference between data and instructions
1290          * sections.
1291          */
1292         if (!fw->mvm_fw && validate_sec_sizes(drv, pieces, drv->cfg))
1293                 goto try_again;
1294
1295         /* Allocate ucode buffers for card's bus-master loading ... */
1296
1297         /* Runtime instructions and 2 copies of data:
1298          * 1) unmodified from disk
1299          * 2) backup cache for save/restore during power-downs */
1300         for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
1301                 if (iwl_alloc_ucode(drv, pieces, i))
1302                         goto out_free_fw;
1303
1304         if (pieces->dbg_dest_tlv) {
1305                 drv->fw.dbg_dest_tlv =
1306                         kmemdup(pieces->dbg_dest_tlv,
1307                                 sizeof(*pieces->dbg_dest_tlv) +
1308                                 sizeof(pieces->dbg_dest_tlv->reg_ops[0]) *
1309                                 drv->fw.dbg_dest_reg_num, GFP_KERNEL);
1310
1311                 if (!drv->fw.dbg_dest_tlv)
1312                         goto out_free_fw;
1313         }
1314
1315         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++) {
1316                 if (pieces->dbg_conf_tlv[i]) {
1317                         drv->fw.dbg_conf_tlv_len[i] =
1318                                 pieces->dbg_conf_tlv_len[i];
1319                         drv->fw.dbg_conf_tlv[i] =
1320                                 kmemdup(pieces->dbg_conf_tlv[i],
1321                                         drv->fw.dbg_conf_tlv_len[i],
1322                                         GFP_KERNEL);
1323                         if (!drv->fw.dbg_conf_tlv[i])
1324                                 goto out_free_fw;
1325                 }
1326         }
1327
1328         memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz));
1329
1330         trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] =
1331                 sizeof(struct iwl_fw_dbg_trigger_missed_bcon);
1332         trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0;
1333         trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] =
1334                 sizeof(struct iwl_fw_dbg_trigger_cmd);
1335         trigger_tlv_sz[FW_DBG_TRIGGER_MLME] =
1336                 sizeof(struct iwl_fw_dbg_trigger_mlme);
1337         trigger_tlv_sz[FW_DBG_TRIGGER_STATS] =
1338                 sizeof(struct iwl_fw_dbg_trigger_stats);
1339         trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] =
1340                 sizeof(struct iwl_fw_dbg_trigger_low_rssi);
1341         trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] =
1342                 sizeof(struct iwl_fw_dbg_trigger_txq_timer);
1343         trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] =
1344                 sizeof(struct iwl_fw_dbg_trigger_time_event);
1345         trigger_tlv_sz[FW_DBG_TRIGGER_BA] =
1346                 sizeof(struct iwl_fw_dbg_trigger_ba);
1347         trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] =
1348                 sizeof(struct iwl_fw_dbg_trigger_tdls);
1349
1350         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++) {
1351                 if (pieces->dbg_trigger_tlv[i]) {
1352                         /*
1353                          * If the trigger isn't long enough, WARN and exit.
1354                          * Someone is trying to debug something and he won't
1355                          * be able to catch the bug he is trying to chase.
1356                          * We'd better be noisy to be sure he knows what's
1357                          * going on.
1358                          */
1359                         if (WARN_ON(pieces->dbg_trigger_tlv_len[i] <
1360                                     (trigger_tlv_sz[i] +
1361                                      sizeof(struct iwl_fw_dbg_trigger_tlv))))
1362                                 goto out_free_fw;
1363                         drv->fw.dbg_trigger_tlv_len[i] =
1364                                 pieces->dbg_trigger_tlv_len[i];
1365                         drv->fw.dbg_trigger_tlv[i] =
1366                                 kmemdup(pieces->dbg_trigger_tlv[i],
1367                                         drv->fw.dbg_trigger_tlv_len[i],
1368                                         GFP_KERNEL);
1369                         if (!drv->fw.dbg_trigger_tlv[i])
1370                                 goto out_free_fw;
1371                 }
1372         }
1373
1374         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_mem_tlv); i++) {
1375                 if (pieces->dbg_mem_tlv[i]) {
1376                         drv->fw.dbg_mem_tlv[i] =
1377                                 kmemdup(pieces->dbg_mem_tlv[i],
1378                                         sizeof(*drv->fw.dbg_mem_tlv[i]),
1379                                         GFP_KERNEL);
1380                         if (!drv->fw.dbg_mem_tlv[i])
1381                                 goto out_free_fw;
1382                 }
1383         }
1384
1385         /* Now that we can no longer fail, copy information */
1386
1387         /*
1388          * The (size - 16) / 12 formula is based on the information recorded
1389          * for each event, which is of mode 1 (including timestamp) for all
1390          * new microcodes that include this information.
1391          */
1392         fw->init_evtlog_ptr = pieces->init_evtlog_ptr;
1393         if (pieces->init_evtlog_size)
1394                 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12;
1395         else
1396                 fw->init_evtlog_size =
1397                         drv->cfg->base_params->max_event_log_size;
1398         fw->init_errlog_ptr = pieces->init_errlog_ptr;
1399         fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr;
1400         if (pieces->inst_evtlog_size)
1401                 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12;
1402         else
1403                 fw->inst_evtlog_size =
1404                         drv->cfg->base_params->max_event_log_size;
1405         fw->inst_errlog_ptr = pieces->inst_errlog_ptr;
1406
1407         /*
1408          * figure out the offset of chain noise reset and gain commands
1409          * base on the size of standard phy calibration commands table size
1410          */
1411         if (fw->ucode_capa.standard_phy_calibration_size >
1412             IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1413                 fw->ucode_capa.standard_phy_calibration_size =
1414                         IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1415
1416         /* We have our copies now, allow OS release its copies */
1417         release_firmware(ucode_raw);
1418
1419         mutex_lock(&iwlwifi_opmode_table_mtx);
1420         if (fw->mvm_fw)
1421                 op = &iwlwifi_opmode_table[MVM_OP_MODE];
1422         else
1423                 op = &iwlwifi_opmode_table[DVM_OP_MODE];
1424
1425         IWL_INFO(drv, "loaded firmware version %s op_mode %s\n",
1426                  drv->fw.fw_version, op->name);
1427
1428         /* add this device to the list of devices using this op_mode */
1429         list_add_tail(&drv->list, &op->drv);
1430
1431         if (op->ops) {
1432                 drv->op_mode = _iwl_op_mode_start(drv, op);
1433
1434                 if (!drv->op_mode) {
1435                         mutex_unlock(&iwlwifi_opmode_table_mtx);
1436                         goto out_unbind;
1437                 }
1438         } else {
1439                 load_module = true;
1440         }
1441         mutex_unlock(&iwlwifi_opmode_table_mtx);
1442
1443         /*
1444          * Complete the firmware request last so that
1445          * a driver unbind (stop) doesn't run while we
1446          * are doing the start() above.
1447          */
1448         complete(&drv->request_firmware_complete);
1449
1450         /*
1451          * Load the module last so we don't block anything
1452          * else from proceeding if the module fails to load
1453          * or hangs loading.
1454          */
1455         if (load_module) {
1456                 err = request_module("%s", op->name);
1457 #ifdef CONFIG_IWLWIFI_OPMODE_MODULAR
1458                 if (err)
1459                         IWL_ERR(drv,
1460                                 "failed to load module %s (error %d), is dynamic loading enabled?\n",
1461                                 op->name, err);
1462 #endif
1463         }
1464         kfree(pieces);
1465         return;
1466
1467  try_again:
1468         /* try next, if any */
1469         release_firmware(ucode_raw);
1470         if (iwl_request_firmware(drv, false))
1471                 goto out_unbind;
1472         kfree(pieces);
1473         return;
1474
1475  out_free_fw:
1476         IWL_ERR(drv, "failed to allocate pci memory\n");
1477         iwl_dealloc_ucode(drv);
1478         release_firmware(ucode_raw);
1479  out_unbind:
1480         kfree(pieces);
1481         complete(&drv->request_firmware_complete);
1482         device_release_driver(drv->trans->dev);
1483 }
1484
1485 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans,
1486                               const struct iwl_cfg *cfg)
1487 {
1488         struct iwl_drv *drv;
1489         int ret;
1490
1491         drv = kzalloc(sizeof(*drv), GFP_KERNEL);
1492         if (!drv) {
1493                 ret = -ENOMEM;
1494                 goto err;
1495         }
1496
1497         drv->trans = trans;
1498         drv->dev = trans->dev;
1499         drv->cfg = cfg;
1500
1501         init_completion(&drv->request_firmware_complete);
1502         INIT_LIST_HEAD(&drv->list);
1503
1504 #ifdef CONFIG_IWLWIFI_DEBUGFS
1505         /* Create the device debugfs entries. */
1506         drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev),
1507                                             iwl_dbgfs_root);
1508
1509         if (!drv->dbgfs_drv) {
1510                 IWL_ERR(drv, "failed to create debugfs directory\n");
1511                 ret = -ENOMEM;
1512                 goto err_free_drv;
1513         }
1514
1515         /* Create transport layer debugfs dir */
1516         drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv);
1517
1518         if (!drv->trans->dbgfs_dir) {
1519                 IWL_ERR(drv, "failed to create transport debugfs directory\n");
1520                 ret = -ENOMEM;
1521                 goto err_free_dbgfs;
1522         }
1523 #endif
1524
1525         ret = iwl_request_firmware(drv, true);
1526         if (ret) {
1527                 IWL_ERR(trans, "Couldn't request the fw\n");
1528                 goto err_fw;
1529         }
1530
1531         return drv;
1532
1533 err_fw:
1534 #ifdef CONFIG_IWLWIFI_DEBUGFS
1535 err_free_dbgfs:
1536         debugfs_remove_recursive(drv->dbgfs_drv);
1537 err_free_drv:
1538 #endif
1539         kfree(drv);
1540 err:
1541         return ERR_PTR(ret);
1542 }
1543
1544 void iwl_drv_stop(struct iwl_drv *drv)
1545 {
1546         wait_for_completion(&drv->request_firmware_complete);
1547
1548         _iwl_op_mode_stop(drv);
1549
1550         iwl_dealloc_ucode(drv);
1551
1552         mutex_lock(&iwlwifi_opmode_table_mtx);
1553         /*
1554          * List is empty (this item wasn't added)
1555          * when firmware loading failed -- in that
1556          * case we can't remove it from any list.
1557          */
1558         if (!list_empty(&drv->list))
1559                 list_del(&drv->list);
1560         mutex_unlock(&iwlwifi_opmode_table_mtx);
1561
1562 #ifdef CONFIG_IWLWIFI_DEBUGFS
1563         debugfs_remove_recursive(drv->dbgfs_drv);
1564 #endif
1565
1566         kfree(drv);
1567 }
1568
1569
1570 /* shared module parameters */
1571 struct iwl_mod_params iwlwifi_mod_params = {
1572         .restart_fw = true,
1573         .bt_coex_active = true,
1574         .power_level = IWL_POWER_INDEX_1,
1575         .d0i3_disable = true,
1576         .d0i3_entry_delay = 1000,
1577         .uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT,
1578         /* the rest are 0 by default */
1579 };
1580 IWL_EXPORT_SYMBOL(iwlwifi_mod_params);
1581
1582 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops)
1583 {
1584         int i;
1585         struct iwl_drv *drv;
1586         struct iwlwifi_opmode_table *op;
1587
1588         mutex_lock(&iwlwifi_opmode_table_mtx);
1589         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1590                 op = &iwlwifi_opmode_table[i];
1591                 if (strcmp(op->name, name))
1592                         continue;
1593                 op->ops = ops;
1594                 /* TODO: need to handle exceptional case */
1595                 list_for_each_entry(drv, &op->drv, list)
1596                         drv->op_mode = _iwl_op_mode_start(drv, op);
1597
1598                 mutex_unlock(&iwlwifi_opmode_table_mtx);
1599                 return 0;
1600         }
1601         mutex_unlock(&iwlwifi_opmode_table_mtx);
1602         return -EIO;
1603 }
1604 IWL_EXPORT_SYMBOL(iwl_opmode_register);
1605
1606 void iwl_opmode_deregister(const char *name)
1607 {
1608         int i;
1609         struct iwl_drv *drv;
1610
1611         mutex_lock(&iwlwifi_opmode_table_mtx);
1612         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1613                 if (strcmp(iwlwifi_opmode_table[i].name, name))
1614                         continue;
1615                 iwlwifi_opmode_table[i].ops = NULL;
1616
1617                 /* call the stop routine for all devices */
1618                 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
1619                         _iwl_op_mode_stop(drv);
1620
1621                 mutex_unlock(&iwlwifi_opmode_table_mtx);
1622                 return;
1623         }
1624         mutex_unlock(&iwlwifi_opmode_table_mtx);
1625 }
1626 IWL_EXPORT_SYMBOL(iwl_opmode_deregister);
1627
1628 static int __init iwl_drv_init(void)
1629 {
1630         int i;
1631
1632         mutex_init(&iwlwifi_opmode_table_mtx);
1633
1634         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++)
1635                 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv);
1636
1637         pr_info(DRV_DESCRIPTION "\n");
1638         pr_info(DRV_COPYRIGHT "\n");
1639
1640 #ifdef CONFIG_IWLWIFI_DEBUGFS
1641         /* Create the root of iwlwifi debugfs subsystem. */
1642         iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL);
1643
1644         if (!iwl_dbgfs_root)
1645                 return -EFAULT;
1646 #endif
1647
1648         return iwl_pci_register_driver();
1649 }
1650 module_init(iwl_drv_init);
1651
1652 static void __exit iwl_drv_exit(void)
1653 {
1654         iwl_pci_unregister_driver();
1655
1656 #ifdef CONFIG_IWLWIFI_DEBUGFS
1657         debugfs_remove_recursive(iwl_dbgfs_root);
1658 #endif
1659 }
1660 module_exit(iwl_drv_exit);
1661
1662 #ifdef CONFIG_IWLWIFI_DEBUG
1663 module_param_named(debug, iwlwifi_mod_params.debug_level, uint,
1664                    S_IRUGO | S_IWUSR);
1665 MODULE_PARM_DESC(debug, "debug output mask");
1666 #endif
1667
1668 module_param_named(swcrypto, iwlwifi_mod_params.sw_crypto, int, S_IRUGO);
1669 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
1670 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, S_IRUGO);
1671 MODULE_PARM_DESC(11n_disable,
1672         "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX");
1673 module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size,
1674                    int, S_IRUGO);
1675 MODULE_PARM_DESC(amsdu_size, "amsdu size 0:4K 1:8K 2:12K (default 0)");
1676 module_param_named(fw_restart, iwlwifi_mod_params.restart_fw, bool, S_IRUGO);
1677 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)");
1678
1679 module_param_named(antenna_coupling, iwlwifi_mod_params.ant_coupling,
1680                    int, S_IRUGO);
1681 MODULE_PARM_DESC(antenna_coupling,
1682                  "specify antenna coupling in dB (default: 0 dB)");
1683
1684 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, S_IRUGO);
1685 MODULE_PARM_DESC(nvm_file, "NVM file name");
1686
1687 module_param_named(d0i3_disable, iwlwifi_mod_params.d0i3_disable,
1688                    bool, S_IRUGO);
1689 MODULE_PARM_DESC(d0i3_disable, "disable d0i3 functionality (default: Y)");
1690
1691 module_param_named(lar_disable, iwlwifi_mod_params.lar_disable,
1692                    bool, S_IRUGO);
1693 MODULE_PARM_DESC(lar_disable, "disable LAR functionality (default: N)");
1694
1695 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable,
1696                    uint, S_IRUGO | S_IWUSR);
1697 MODULE_PARM_DESC(uapsd_disable,
1698                  "disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3)");
1699
1700 /*
1701  * set bt_coex_active to true, uCode will do kill/defer
1702  * every time the priority line is asserted (BT is sending signals on the
1703  * priority line in the PCIx).
1704  * set bt_coex_active to false, uCode will ignore the BT activity and
1705  * perform the normal operation
1706  *
1707  * User might experience transmit issue on some platform due to WiFi/BT
1708  * co-exist problem. The possible behaviors are:
1709  *   Able to scan and finding all the available AP
1710  *   Not able to associate with any AP
1711  * On those platforms, WiFi communication can be restored by set
1712  * "bt_coex_active" module parameter to "false"
1713  *
1714  * default: bt_coex_active = true (BT_COEX_ENABLE)
1715  */
1716 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active,
1717                 bool, S_IRUGO);
1718 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
1719
1720 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, S_IRUGO);
1721 MODULE_PARM_DESC(led_mode, "0=system default, "
1722                 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
1723
1724 module_param_named(power_save, iwlwifi_mod_params.power_save,
1725                 bool, S_IRUGO);
1726 MODULE_PARM_DESC(power_save,
1727                  "enable WiFi power management (default: disable)");
1728
1729 module_param_named(power_level, iwlwifi_mod_params.power_level,
1730                 int, S_IRUGO);
1731 MODULE_PARM_DESC(power_level,
1732                  "default power save level (range from 1 - 5, default: 1)");
1733
1734 module_param_named(fw_monitor, iwlwifi_mod_params.fw_monitor, bool, S_IRUGO);
1735 MODULE_PARM_DESC(fw_monitor,
1736                  "firmware monitor - to debug FW (default: false - needs lots of memory)");
1737
1738 module_param_named(d0i3_timeout, iwlwifi_mod_params.d0i3_entry_delay,
1739                    uint, S_IRUGO);
1740 MODULE_PARM_DESC(d0i3_timeout, "Timeout to D0i3 entry when idle (ms)");
1741
1742 module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool,
1743                    S_IRUGO);
1744 MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities");